Sökning: "Phase Noise Model"

Visar resultat 1 - 5 av 74 avhandlingar innehållade orden Phase Noise Model.

  1. 1. Modeling and Estimation of Phase Noise in Oscillators with Colored Noise Sources

    Detta är en avhandling från Chalmers University of Technology

    Författare :Mohammad Reza Khanzadi; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Oscillator Phase Noise; Voltage-controlled Oscillator; Phase-Locked Loop; Colored Phase Noise; Phase Noise Model; Bayesian Cramer-Rao Bound; Maximum a Posteriori Estimator; Extended Kalman Filter Smoother; Mean Square Error.;

    Sammanfattning : The continuous increase in demand for higher data rates due to applications with massive number of users motivates the design of faster and more spectrum efficient communication systems. In theory, the current communication systems must be able to operate close to Shannon capacity bounds. LÄS MER

  2. 2. Phase Noise in Communication Systems--Modeling, Compensation, and Performance Analysis

    Detta är en avhandling från Chalmers University of Technology

    Författare :Mohammad Reza Khanzadi; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Oscillator phase noise; free-running oscillator; phase-locked loop; colored phase noise; phase noise model; Bayesian Cramér-Rao bound; maximum a posteriori estimator; extended Kalman filter smoother; mean square error; channel capacity; Wiener process; capacity achieving distribution; multiple antennas; distributed oscillators.;

    Sammanfattning : The continuous increase in demand for higher data rates due to applications with massive number of users motivates the design of faster and more spectrum efficient communication systems. In theory, the current communication systems must be able to operate close to Shannon capacity bounds. LÄS MER

  3. 3. Detection in Digital Communication Systems with Phase Noise

    Detta är en avhandling från Chalmers University of Technology

    Författare :Florent Munier; Chalmers tekniska högskola.; Chalmers University of Technology.; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telekommunikation; Telecommunication; Phase noise; Wiener process; estimation; single carrier modulation;

    Sammanfattning : In every communication system, the limitations of the hardware sets a constraint on the overall system performance. More often than not, these limitations are not taken into account during the system design stage where the hardware is considered ideal. LÄS MER

  4. 4. Oscillator design in III-V technologies

    Detta är en avhandling från Chalmers University of Technology

    Författare :Sz-Hau Lai; Chalmers tekniska högskola.; Chalmers University of Technology.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MMIC; InGaP HBT; GaN HEMT; device model; varactor; VCO; phase noise; low frequency noise; simulation; CAD; Colpitts oscillator; mixer; Darlington pair; switch mode.;

    Sammanfattning : The thesis treats the design of low phase noise oscillators/VCOs in GaAs/InGaP HBT and GaN HEMT technologies. The covered topics are: active device modeling, noise characterization, passive structures, phase noise models, simulation/measurement tools, circuit topologies, and design techniques. LÄS MER

  5. 5. Spectrally Efficient Continuous Phase Modulation

    Detta är en avhandling från Chalmers University of Technology

    Författare :Tommy Svensson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2002]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; Informationsteknik; Information technology; continuous phase modulation CPM ; convolutional codes; trellis coded modulation TCM ; maximum likelihood sequence detection MLSD ; distance spectrum; non-linear channels; additive white Gaussian noise AWGN ; spectrum efficiency; Laurent decomposition;

    Sammanfattning : Spectrally efficient continuous phase modulation (CPM) systems and generalizations of CPM for wireless links are considered. Continuous phase modulation defines constant envelope phase codes, which are advantageous when using non-linear amplifiers. LÄS MER